Figure 2: Working mechanism and output performance of the TENG.
From: Sustainably powering wearable electronics solely by biomechanical energy
(a) Working mechanism of the TENG. (b) Comparison of the output charges density (σsc) measured in this work with that in the previous works, insets in top-left corner and bottom-right corner show the structure of liquid-metal based triboelectric nanogenerator (LM-TENG) and horn-like polypyrrole based triboelectric nanogenerator (hPPy-TENG), respectively. (c,d) Schematic diagrams of the helix-belt structured TENG and the straight-layout structured TENG pressed at various directions. (e) σsc of the helix-belt structured TENG and straight-layout structured TENG. (f–k) Schematic diagram and output charge (QSC) and σsc of the TENG at various structure parameters, and the error bars are s.d.: (f,g) width of the triboelectric electrode (d) is 5 mm; (h,i) oblique angle of the electrode to horizontal axis (θ) is 45°; (j,k) d=D × sinθ, where D is the width of the tube when it is flattened by pressing.
